JP2002003123A - Unit type elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To ensure the strength of a steel tower frame during the transport, and to eliminate the excessive reinforcement of the steel tower frame after the installation is completed. SOLUTION: The steel tower frame 1 constituting a hoistway of an elevator comprises a plurality of split units 7, 9, 11 and 13. A plurality of reinforcing beams 27 and 25 detachable after the installation is completed are fitted to the units 7, 9, 11 and 13 in an attachable/detachable manner, and a part of the reinforcing beams 25 and 27 are used as fixed supporting beam for fix- supporting appliances.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a unit elevator.

[0002]

2. Description of the Related Art In recent years, social demands for elevators include the arrival of an aging society and improvement of welfare.

[0003] In particular, when installing an elevator in an existing building, it is difficult to completely close daily use during the construction period. Therefore, the work area is divided by safety fences, and the construction is completed as quickly as possible. It is desired to do.

[0004] To this end, a steel tower frame which is to be a hoistway is divided into a plurality of pieces in the height direction in advance in a factory, and a guide rail, an entrance, or a car, which guides an elevator car up and down, is provided in each of the divided units. A unit construction method has been put to practical use in which a hoisting machine or the like for raising and lowering the unit is mounted, transported to the site, and each unit is installed integrally.

[0005]

The unit construction method has an advantage that the number of installation steps on site can be greatly reduced, but has a disadvantage that the unit is deformed during transportation. Since this is based on the design strength at the time of installation, it is considered that there is a certain degree of shortage in the strength at the time of transportation.

[0006] The deformation of the unit causes the centering work to be performed again on site, such as the connection position of the guide rails for guiding the car up and down, leading to a delay in the construction period.

For this reason, measures to maintain the strength during transportation have been taken such as increasing the thickness of the tower frame and adding reinforcing members as strength members. At present, the tower frame is in an excessively reinforced state. It is not desirable in terms of cost.

Accordingly, the present invention is to provide a unit type elevator which secures the strength of the tower frame during transportation, does not become excessively reinforced after the installation is completed, and is excellent in cost. is there.

[0009]

In order to achieve the above object, according to the first aspect of the present invention, it is possible to remove a tower frame constituting an elevator shaft into a plurality of divided units after completion of installation. A plurality of reinforcing beams are detachably attached, and some of the reinforcing beams are used as fixed support beams for fixedly supporting the device.

This makes it possible to reduce the thickness of the steel tower frame constituting the hoistway, and at the same time, during transport, the strength is secured by the reinforcing beams and deformation is suppressed to a small value. After installation is completed, by removing the reinforcing beams other than the fixed support beams to which the equipment is attached, the design strength at the time of installation can be obtained,
It does not become excessively reinforced. Moreover, by using the removed reinforcing beam as a strength member of the next tower frame, it becomes very preferable in terms of cost.

According to a second aspect of the present invention, an entrance / exit unit and a car floor unit are incorporated into one of a plurality of divided units of a steel tower frame constituting a hoistway of an elevator, and a floor of the car floor unit is provided. A unit structure in which the surface position is higher than the floor of the entrance unit in the height direction.

Thus, a work space can be created below the car floor unit, so that work can be easily performed from below, while the work floor is used as a work table for working in places where the floor surface of the car floor unit is high. It can be used.

According to the third aspect of the present invention, the counterweight unit is incorporated into the unit incorporating the doorway unit.

Thus, the work of assembling the counterweight unit can be easily performed on the car floor of the doorway unit.

According to a fourth aspect of the present invention, equipment is mounted on the lowest pit unit obtained by dividing a steel tower frame constituting an elevator shaft into a plurality of parts, and the bottom surface of the equipment has a pit surface having a pit hole. It is located above the pit unit installation surface.

As a result, even if the pit surface on which the pit unit is installed has irregularities on the floor surface of the equipment, a horizontal and reliable fixed support state can be obtained without interference with the irregularities.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiments of the present invention will be specifically described below with reference to FIGS.

FIG. 2 shows the tower frame 1 which is long vertically.
The tower frame 1 is framed by vertical, horizontal, and vertical frames 3 to form an elevator shaft, and an entrance unit 5
Are for two stops provided on the first and second floors.

As shown in FIG. 3, the tower frame 1 is divided into an uppermost unit 7, intermediate units 9, 11 and a lowermost unit 13 in the height direction.

The uppermost unit 7 has a pair of car guide rails 19 for guiding the hoisting machine 15 and the car 17 up and down.
And a pair of guide rails 23 for a counterweight for guiding the counterweight 21 up and down, and an entrance / exit unit 5.

The entrance unit 5 can be opened and closed by sliding a pair of sliding doors 6 on the front side to the right and left.

A pair of parallel reinforcing beams 25 are fixedly supported on the bottom frame 3 of the uppermost unit 7 and a plurality of reinforcing beams 27 are detachably mounted on the frame 3 in the height direction.

The parallel reinforcing beams 25 attached to the bottom frame 3 function as reinforcing members during transportation, and at the same time, function as supporting legs for temporary placement on the ground P at the site. Connection edge 1 serving as lower end of 19, 21
9a and 23a serve to prevent the core from going out of contact with the ground P. When the installation is completed, it is removed and reused as the strength member of the next elevator.

The reinforcing beam 2 attached to the frame 3 in the height direction
7 functions as a reinforcing member during transportation, while the reinforcing beams 2
As shown in FIG. 5, a mounting bracket 29 for each of the guide rails 19 and 21 is mounted on the base 7. The reinforcing beams 27 to which the mounting brackets 29 are attached are of two types, which function as fixed support members at the time of transportation and completion of installation, and which are removed together with other reinforcing beams 27 after completion of installation. The removed reinforcing beam 27, for example, the phantom line in FIG. 3, is intended to be reused as the strength member of the next elevator.

The intermediate units 9 and 11 are provided with a guide rail 19 for a car and a guide rail 23 for a counterweight as shown in FIGS.
As shown in FIG. 5, the unit is provided with an entrance unit 5 in addition to a car guide rail 19 and a balancing guide rail 23.

Of the two types, one intermediate unit 9 is
It is located between floors and functions to guide the car 17 and the counterweight 21 up and down by the respective guide rails 19 and 23.

The unit 9 includes guide rails 19 and 23
A reinforcing beam 27 (virtual line) to be removed after the installation is completed is provided outside the reinforcing beam 27 serving as a fixing supporting beam and the reinforcing beam 25 serving as a support leg for fixing and supporting the structure, thereby ensuring strength and rigidity during transportation. ing.

The other intermediate unit 11 is located at the stop floor of the first floor, and has a car floor unit 33 in addition to the guide rails 19 and 21 and the entrance / exit unit 5 as shown in FIGS. Equipped with door 3 of doorway unit 5
The doorway can be opened and closed by sliding the door 1 left and right.

The parallel reinforcing beams 25 attached to the bottom frame 3 function as reinforcing members during transportation, and also function as supporting legs for temporary placement on the ground P at the site, and each guide rail. Connection edge 1 serving as lower end of 19, 21
9a and 23a serve to prevent the core from going out of contact with the ground P. When the installation is completed, it is removed and used as the strength member of the next elevator.

The reinforcing beam 2 attached to the frame 3 in the height direction
7 functions as a reinforcing member during transportation, while the reinforcing beams 2
As shown in FIG. 5, a mounting bracket 29 for each of the guide rails 19 and 21 is mounted on the base 7. The reinforcing beams 27 to which the mounting brackets 29 are attached are of two types, which function as fixed support members at the time of transportation and completion of installation, and which are removed together with other reinforcing beams 27 after completion of installation. The removed reinforcing beam 27 is reused as a strength member of an elevator to be manufactured next, for example, as shown by a phantom line in FIG.

The car floor unit 33 is installed at a position H higher than the floor of the entrance unit 5 as shown in FIG. 6, and is supported by a pair of parallel reinforcing beams 35 serving as support legs for installation. Thus, a work space is created below the car floor unit 33, and the car floor upper surface 37 can be used as a work table.

This unit is provided with a counterweight unit 39. Counterweight unit 3
Numeral 9 includes a counterweight 21 that moves up and down along a counterweight guide rail 23, and a rope 41 that suspends and supports the counterweight 21.

As shown in FIG. 12, one end of the rope 41 is located at the upper end of the tower frame 1, and the other end of the rope 41 is located at the counterweight 21.
And is fixedly supported on the upper end of the tower frame 1 via a hoisting roller 45 of the hoisting machine 15 and a car roller 47 of the car 17.

Therefore, the hoisting roller 4 of the hoisting machine 15
When the wheel 5 is rotated clockwise, for example, the car 17 is raised, and the counterweight 21 is lowered.

The pit unit 47 which is the lowest unit 13 is in balance with the car 17 and the car shock absorber 51 which absorbs the energy of the descent when the weight 21 descends as shown in FIGS. And a shock absorber 53 for weight. The car shock absorber 51 is arranged on the bottom reinforcing beam 49, and the counterweight shock absorber 53 is arranged on the bottom of the counterweight guide rail 23.

At four bottom corners of the pit unit 47, pit fastening portions 55 having a predetermined plate thickness are provided.

The pit fastening portion 55 is fixed and supported by anchor bolts 59 rising from the pit surface 57a of the pit hole 57, so that the bottoms of the car and counterweight buffers 51, 53 are formed in the pit hole 57. 57 is located above the pit surface 57a. This allows horizontal installation without being affected by the unevenness of the pit surface 57a.

According to the unit type elevator constructed as described above, the tower frame 1 of each unit has the reinforcing beams 25, 27.
Since it is reinforced, the thickness can be reduced. On the other hand, during transportation, since the strength and rigidity are ensured by the reinforcing beams 25 and 27, the deformation is suppressed to be small, so that the centering work on the site is not required, and the installation work is immediately started. In addition, each unit 7, 9, 1
Since the installation beam P is temporarily supported by the reinforcing beam 25 serving as a mounting leg when the device 1 is temporarily placed, interference deformation with the lower ends of the guide rails 19 and 23 is prevented even if the installation surface P has irregularities.
The guide rail 23 is not out of order.

Next, as shown in FIG. 3, when the lowermost pit unit 47 is installed in the pit hole 57 by the lifting machine 63 at the time of installation, the pit fastening plate 55 affects the unevenness of the pit surface 57a of the pit hole 57. The shock absorbers 51 and 53 can be installed in a horizontal state without being performed.

After the installation of the pit unit 47 is completed, the gap between the bottoms of the shock absorbers 51 and 53 and the pit surface 57a is filled with a shim or mortar to secure the supporting strength.

Next, in the intermediate unit 11 on which the car floor unit 33 is placed and set, the entrance unit 5
Since it is located at a position higher than the bottom surface of the car, the work can be performed from below the car hole unit 33 by entering the pit hole 57. Further, since the upper surface 37 of the car floor unit 33 serves as a work table, the assembling work of the counterweight unit 39 and the like can be easily performed.

After the units 7, 9, 11, 13 (47) have been installed, they are integrally fixed and supported by the unit fastening plate 63. The guide rails 9 and 23 and the guide rails 19 and 21 are integrally fixed and supported by a rail joint bracket 65 as shown in FIG.

[0043]

As described above, according to the unit-type elevator of the present invention, the strength of the tower frame during transportation can be secured, so that the centering work on site is not required, and the workability is improved. I can do it.

Further, since the reinforcing beams other than the fixed supporting beams to which the equipment is mounted are removed after the installation is completed, the reinforcing beams are not excessively strengthened, and the removed reinforcing beams are used as reinforcing members for the elevator to be made next. Since it can be reused, it is very preferable in terms of cost.

[Brief description of the drawings]

FIG. 1 is a schematic rear view of an entire steel tower frame according to the present invention.

FIG. 2 is a schematic front view of the entire tower frame.

FIG. 3 is an explanatory diagram in which a steel tower frame is divided into a plurality.

FIG. 4 is a schematic explanatory view of an intermediate unit obtained by dividing a steel tower frame.

FIG. 5 is a schematic plan view of FIG.

FIG. 6 is a schematic explanatory view of an intermediate unit obtained by dividing a tower frame.

FIG. 7 is a schematic front view of FIG. 6;

FIG. 8 is a schematic plan view of FIG. 6;

FIG. 9 is a schematic plan view showing the lowest unit.

FIG. 10 is a sectional view taken along line AA of FIG. 9;

FIG. 11 is a sectional view taken along line BB of FIG. 9;

FIG. 12 is an explanatory diagram showing a relationship between a rope, a cage, and a counterweight.

FIG. 13 is a schematic explanatory view showing a connection state of a guide rail.

[Explanation of symbols]

 1 Tower frame 7, 9, 11, 13 Unit 25, 27 Reinforcement beam

Claims (4)

[Claims] 1. A plurality of reinforcing beams which can be detached after the installation is completed are detachably attached to a unit in which a steel tower frame constituting an elevator shaft is divided into a plurality of parts, and a part of the reinforcing beams is installed in equipment. Characterized in that it is used as a fixed support beam for fixedly supporting the unit. 2. An entrance / exit unit and a car floor unit are incorporated into one of a plurality of divided units of a steel tower frame constituting a hoistway of an elevator, and the floor position of the car floor unit is the height direction of the entrance / exit unit. A unit-type elevator having a unit structure that is higher than the floor. 3. A unit incorporating an entrance / exit unit,
3. The unit-type elevator according to claim 2, wherein a counterweight unit is incorporated. 4. A device is mounted on a lowermost pit unit obtained by dividing a steel tower frame constituting a hoistway of an elevator into a plurality of sections, and a bottom surface of the device is installed on a pit surface of a pit hole from a pit unit installation surface. A unit-type elevator, which is disposed above.